package com.zhongkai.dao.config;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

import com.zhongkai.dao.BaseDao;
import com.zhongkai.model.config.User;

/**
 * A data access object (DAO) providing persistence and search support for User
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see com.zhongkai.model.config.User
 * @author MyEclipse Persistence Tools
 */
@Component
public class UserDAO extends BaseDao {
	private static final Log log = LogFactory.getLog(UserDAO.class);
	// property constants
	public static final String DEPARTMENT_ID = "departmentId";
	public static final String ROLE_ID = "roleId";
	public static final String USER_ACCOUNT = "userAccount";
	public static final String USER_PASSWORD = "userPassword";
	public static final String USER_NICKNAME = "userNickname";
	public static final String USER_SWITCH = "userSwitch";
	public static final String USER_EMAIL = "userEmail";

	protected void initDao() {
		// do nothing
	}

	public void save(User transientInstance) {
		log.debug("saving User instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(User persistentInstance) {
		log.debug("deleting User instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public User findById(java.lang.Integer id) {
		log.debug("getting User instance with id: " + id);
		try {
			User instance = (User) getHibernateTemplate().get(
					"com.zhongkai.model.config.User", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(User instance) {
		log.debug("finding User instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding User instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from User as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByDepartmentId(Object departmentId) {
		return findByProperty(DEPARTMENT_ID, departmentId);
	}

	public List findByRoleId(Object roleId) {
		return findByProperty(ROLE_ID, roleId);
	}

	public List findByUserAccount(Object userAccount) {
		return findByProperty(USER_ACCOUNT, userAccount);
	}

	public List findByUserPassword(Object userPassword) {
		return findByProperty(USER_PASSWORD, userPassword);
	}

	public List findByUserNickname(Object userNickname) {
		return findByProperty(USER_NICKNAME, userNickname);
	}

	public List findByUserSwitch(Object userSwitch) {
		return findByProperty(USER_SWITCH, userSwitch);
	}

	public List findByUserEmail(Object userEmail) {
		return findByProperty(USER_EMAIL, userEmail);
	}

	public List findAll() {
		log.debug("finding all User instances");
		try {
			String queryString = "from User";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public User merge(User detachedInstance) {
		log.debug("merging User instance");
		try {
			User result = (User) getHibernateTemplate().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(User instance) {
		log.debug("attaching dirty User instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(User instance) {
		log.debug("attaching clean User instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public User findByAccount(String account) throws Exception{
		Query query=getSessionFactory().getCurrentSession().createQuery("from User user where user.userAccount=:userAccount");
		if(account!=null){
			query.setParameter("userAccount", account);
			User user=(User)query.uniqueResult();
			return user;
		}
		
		return null;
	}
	
	
	public boolean exist(User user) throws Exception {
		Query query=getSessionFactory().getCurrentSession().createQuery("from User user where user.userAccount=:userAccount and user.userPassword=:userPassword");
		if(user!=null){
			query.setParameter("userAccount", user.getUserAccount());
			query.setParameter("userPassword", user.getUserPassword());
			if((user=(User)query.uniqueResult())!=null){
				return true;
			}
			
		}
		
		return false;
	}
	
	public List findByHql(String hql, Object[] values) throws Exception {
		return getHibernateTemplate().find(hql, values);
	}
	
	public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
		return (UserDAO) ctx.getBean("UserDAO");
	}
}